Classifications

• • G—PHYSICS
  • G02—OPTICS
  • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
  • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
  • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
  • G02B6/4439—Auxiliary devices
  • G02B6/444—Systems or boxes with surplus lengths
  • G02B6/4452—Distribution frames
• • G—PHYSICS
  • G02—OPTICS
  • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
  • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
  • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
  • G02B6/4439—Auxiliary devices
  • G02B6/444—Systems or boxes with surplus lengths
  • G02B6/4452—Distribution frames
  • G02B6/44526—Panels or rackmounts covering a whole width of the frame or rack
• • G—PHYSICS
  • G02—OPTICS
  • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
  • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
  • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
  • G02B6/4439—Auxiliary devices
  • G02B6/444—Systems or boxes with surplus lengths
  • G02B6/44528—Patch-cords; Connector arrangements in the system or in the box
• • G—PHYSICS
  • G02—OPTICS
  • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
  • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
  • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
  • G02B6/4439—Auxiliary devices
  • G02B6/444—Systems or boxes with surplus lengths
  • G02B6/4453—Cassettes
  • G02B6/4455—Cassettes characterised by the way of extraction or insertion of the cassette in the distribution frame, e.g. pivoting, sliding, rotating or gliding

Definitions

• the modular cable head according to the present invention has a generally open, frame-like structure and comprises a mounting structure for receiving a plurality of optical telecommunications modules.
• the mounting structure can also be called mounting frame, and is intended to cover any structure or assembly, which allows optical telecommunications modules to be mounted thereon.
• a portion of the mounting frame serves as a routing portion for routing fibre-optic cables to and from the optical telecommunications modules.
• the routing portion may be formed integrally with the mounting frame or as a separate structure provided on the mounting frame .
• the holding portion substantially at the far end of the plates with respect to the pivot axis thereof, while the excess cable portion may be located substantially in proximity of said pivot axis.
• this arrangement has been found to be the most practical, other arrangements, such as one where the holding portion is substantially in proximity of the pivot axis on the plate, and the excess cable portion is substantially at the far end of the plate, are possible. Also, arrangements in which the holding portion and the excess cable portion are substantially at the same distance from the pivot axis on the plate may be contemplated.
• the routing portion 16 comprises hook-like protrusions 18 for holding and guiding incoming fibre-optic cables along its inner surface, as well as holes 19 for receiving holding means such as cable brackets (not shown) on its outer surface.
• These holes and cable brackets may be chosen to be identical to the holes 29 and cable brackets 25, respectively, in the excess cable portion 21.
• the incoming cable received by the excess cable portion 21 comes, for example, from a network spreader subassembly (not shown) , and is guided by the hooks 18 on the inside of the routing portion 16 towards the cylindrical bar 14 (the pivoting axis), from where in turn it is guided to the holding means 25 of excess cable portion 21.
• the incoming cable is stored in the excess cable portion 21 in loops and/or eights. From there it is directed towards an entry point 31 on the side of optical module 30. Because the incoming network cable passes close to the pivoting axis of the plate, only little movement and essentially no tensile stress is applied to the cable.
• the optical module 30 has a substantially cassette- like shape and may be, as in this embodiment, of substantially rectangular shape with two rounded edges. It comprises a base plate 41 surrounded on three sides by an outer wall 42. On the fourth side a front wall has the connectors 32 mounted thereon. The outer wall 42 leaves at least one opening on one side serving as the entry point 31 for the incoming network cable 65. On the inner side of the front wall, intermediate optical fibres 60 are attached to the connectors and are stored on the base plate by being wound around arc-shaped guiding members 43.
• a tray 50 is attached through hinges 49, so that it can be pivotally opened or closed onto the base plate 41 with its stored length of intermediate optical fibres 60.
• the intermediate optical fibres 60 are wound and stored, their ends opposite to the connector ends are led to the rear of the optical module, and as can be seen in Fig.3b, are fixed by clamp 51 on top of tray 50, which is lowered into a closed position covering the base plate and the stored fibres 60.
• the incoming network cable 65 enters the optical module 30 at the entry point 31, and is fixed to the tray 50 by clamp 54.

Landscapes

• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Optics & Photonics (AREA)
• Light Guides In General And Applications Therefor (AREA)
• Mechanical Coupling Of Light Guides (AREA)

Priority Applications (2)

Applications Claiming Priority (2)

Publications (1)

Family

ID=34933769

Family Applications (1)

Country Status (9)

Cited By (2)

Families Citing this family (15)

Citations (3)

Family Cites Families (14)

• 2005
  • 2005-02-16 EP EP14185753.2A patent/EP2843453B1/de not_active Not-in-force
  • 2005-02-16 EP EP05003249.9A patent/EP1693694B1/de not_active Not-in-force
  • 2005-02-16 PL PL05003249T patent/PL1693694T3/pl unknown
  • 2005-02-16 PL PL14185753T patent/PL2843453T3/pl unknown
  • 2005-02-16 ES ES14185753.2T patent/ES2629893T3/es active Active
  • 2005-02-16 ES ES05003249.9T patent/ES2528768T3/es active Active
• 2006
  • 2006-02-15 CN CNB2006800051187A patent/CN100535697C/zh not_active Expired - Fee Related
  • 2006-02-15 WO PCT/US2006/005282 patent/WO2006088931A1/en active Application Filing
  • 2006-02-15 RU RU2007131469/28A patent/RU2371743C2/ru not_active IP Right Cessation
  • 2006-02-15 MX MX2007009578A patent/MX2007009578A/es active IP Right Grant
  • 2006-02-15 US US11/815,983 patent/US7986864B2/en not_active Expired - Fee Related
  • 2006-02-16 AR ARP060100558A patent/AR052293A1/es not_active Application Discontinuation

Patent Citations (3)

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